HOT, god, and Bigbang as TOP3 boy groups of all time

The best idol group of all time & one of the first idol groups. Had the biggest fandom in the history of Korean music industry.

god

Had the biggest physical sales of all idol groups. The first idol group to have 'national' title.

Bigbang

Signaled the start of digital sales. Introduced a new paradigm. One of the first idol groups to self-produce. To last long, a group has to either have a Shinhwa-like bond or solid solo careers like Bigbang.